1. Valencia, 24, was a farmer as a youngster growing up in San Lorenzo, in the Esmeraldas province of Ecuador.
2. He started his football career at Caribe Junior’s Youth team, the same team that launched the career of Manchester United’s Ecuadorian star Antonio Valencia.
3. Jorge Sampaoli, now in charge of Chile, gave Valencia his first chance at Emelec. His good form earned him a move to Mexican side Pachuca in 2014 before the World Cup.
4. He only registered 27 goals in 131 appearances at Emelec, but was impressive after joining Pachuca, where he became the top scorer in the Mexican league with 18 goals in 23 games.
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5. He is a winger who has been converted into a striker for Ecuador national team after the tragic death of striker Christian Benitez. He has been playing as a striker for less than a year.
6. He scored the first of his seven international goals in November 2013 in a friendly against Honduras and netted three times in the World Cup finals in Brazil, ending the tournament as Ecuador’s top marksman. He has only represented his country 13 times.
7. He is known for his speed, athleticism and sharp eye for goal. He can play as an out-and-out striker or in a wide position.
8. Valencia’s previous club Pachuca have retained a 10% sell-on clause on any profit West Ham make on their new striker in the future.
West Ham are 3.40 to beat Tottenham in their opening game of the Premier League season.